About us

Relax in your home with the correct temperature. Located in Leo Indiana, Merz Plumbing Heating & Air Conditioning offers a range of high-quality services at affordable prices. With a 60-year history of service to the Fort Wayne area, it is our goal each and every day to ensure we are available 24 hours a day, 365 days a year for your comfort and safety.


Outstanding Customer Service.

We are a family-owned-and-operated company and provide outstanding customer service. Our experienced, friendly, and knowledgeable staff services all makes and models of plumbing or HVAC equipment.


Merz Plumbing Heating & Air Conditioning started in 1957. Our hard work and commitment ensures that we will be successful for many more years to come.


Bathroom Renovations and Plumbing Services in Leo, Indiana.

Choose from our variety of services in Leo, Indiana, including heating and air conditioning, bathroom renovations, and plumbing services. Merz Plumbing Heating & Air Conditioning is here to ensure you are comfortable in your home.


Plumbing is an important part of our company. We have several licensed plumbing journeyman on staff here to take care of all of your needs. There is no project too large or small.

There are several efficiencies in media air filters too, so always ask for the most efficient available. Additionally, we offer energy efficient Geothermal tank less water heaters.


Indoor air quality is one of the most important things you can monitor to help keep your family healthy and safe and proper moisture levels can help with comfort and protect your furniture. In addition, a humidifier can take care of that for you and a media or electronic air filter can help keep you healthier by cleaning the air in your home.

Kitchen and Bathroom Renovations.

Leading builders in Fort Wayne, we offer a variety of full-service remodeling services for your kitchen and bathroom. This includes bathtub, shower, sink, faucet, and cabinet installation.

Maintenance Services

  • Check System Functions, Safety Controls
  • Adjust the Operating Sequence
  • Ensure Proper Airflow
  • Change Dirty Air Filters
  • Inspect Pumps, Lubricate
  • Check Flow Rates Where Appropriate
  • Clean and Lubricate Motors
  • Examine Belts, Adjust, and Align
  • Inspect, Clean, and Balance Blowers
  • Inspect Electrical Components and Connections, and Repair/Replace or Tighten

Spring Visit

  • Check Refrigerant Levels
  • Clean Outside Coil and Straighten Fins for Efficient Operation
  • Clean Inside Coil, Condensate Pans, Condensate Traps, and Condensate Lines to Prevent Obstructions

Fall Visit

  • Clean the Burner Assembly
  • Remove Soot from Fireside of Burner
  • Clean and Check Operation of Humidifier
  • Inspect the Heat Exchanger for Cracks
  • Adjust Air-to-Fuel Ratio of Burner and Perform Combustion Analysis


Proudly Serving:

Fort Wayne |New Haven |Hunter Town | Leo | Harlan | Woodburn | Spencerville | LaOtto | Churubusco

Columbia City | Garrett | Auburn | Waterloo | Roanoke | Huntington | Monroeville



Service area

Frequently asked questions

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Book a service call
Business hours
  • Monday

    8:00 AM to 4:30 PM

  • Tuesday

    8:00 AM to 4:30 PM

  • Wednesday

    8:00 AM to 4:30 PM

  • Thursday

    8:00 AM to 4:30 PM

  • Friday

    8:00 AM to 4:30 PM

Contact us

(260) 627-6524